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Key Largo

$104+ Cheap flights from San Jose (SJC) to Key Largo, FL

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — MIA
sep. 2 — sep. 91
mar. 9/2
mar. 9/9
1 adult, Economy
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Cheapflights Tip: The best prices from San Jose to Key Largo are usually found in September or October, booked 34 days in advance, depart on a Tuesday or Monday and return on a Saturday

Cheap flight deals from San Jose to Key Largo

Keep the following information in mind while searching for San Jose to Key Largo flight deals. Data was last updated agosto 28, 2025.

Round-trip from

$173
(Priceline)

One-way from

$104
(Cheapflightsfares)

Popular in

April

Cheapest in

September

Average price

$375
From San Jose to Key Largo
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One-way flight from San Jose to Key Largo
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Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from San Jose to Key Largo

Cheapest flights from San Jose to Key Largo
Explore the most affordable flight options available from San Jose to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 28, 2025.

This Priceline deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/252:14 pmSJC - MIA
1 stop7h 30mFrontier
dom. 9/286:00 amMIA - SJC
1 stop8h 26mFrontier
Deal found 8/27$173
This Frontier deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/512:25 pmSJC - MIA
1 stop9h 19mFrontier
dom. 9/76:00 amMIA - SJC
1 stop10h 14mFrontier
Deal found 8/28$210
This Priceline deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/312:25 pmSJC - MIA
1 stop9h 19mFrontier
lun. 10/66:00 amMIA - SJC
1 stop8h 30mFrontier
Deal found 8/25$214
This Priceline deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/35:55 amSJC - MIA
1 stop9h 47mMultiple Airlines
vie. 11/76:00 amMIA - SJC
1 stop8h 32mMultiple Airlines
Deal found 8/25$222
This FlightHub deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/312:25 pmSJC - MIA
1 stop9h 19mMultiple Airlines
lun. 10/69:30 pmMIA - SJC
1 stop12h 48mMultiple Airlines
Deal found 8/27$224
This Cheapflightsfares deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/72:04 pmSJC - MIA
1 stop7h 40mFrontier
vie. 9/126:00 amMIA - SJC
1 stop8h 30mFrontier
Deal found 8/27$229
This Frontier deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/512:25 pmSJC - MIA
1 stop9h 19mFrontier
lun. 9/86:00 amMIA - SJC
1 stop8h 30mFrontier
Deal found 8/28$233
This FlightHub deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/2612:25 pmSJC - MIA
1 stop9h 19mMultiple Airlines
lun. 9/297:23 pmMIA - SJC
1 stop18h 22mMultiple Airlines
Deal found 8/25$239
This Priceline deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/312:25 pmSJC - MIA
1 stop9h 19mFrontier
vie. 10/106:00 amMIA - SJC
1 stop8h 32mFrontier
Deal found 8/26$240
This Justfly.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/2511:40 amSJC - MIA
2 stops18h 50mMultiple Airlines
jue. 10/26:00 amMIA - SJC
1 stop10h 14mMultiple Airlines
Deal found 8/28$242
This Priceline deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/112:14 pmSJC - MIA
1 stop7h 30mFrontier
jue. 9/186:00 amMIA - SJC
1 stop10h 14mFrontier
Deal found 8/26$245
This FlightHub deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/246:35 amSJC - MIA
1 stop9h 20mSpirit Airlines
lun. 9/297:23 pmMIA - SJC
1 stop18h 22mSpirit Airlines
Deal found 8/27$247

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose to Key Largo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 28, 2025.
Use the filters below to find and compare flights from San Jose to Key Largo that are best for you.

Fly from

San Jose

Fly to

Key Largo

Route

Depart

Return

Price

San JoseMiami

SJC - MIA

SJCMIA

San Jose

jue. 9/25

2:14 pm-12:44 am

1 stop7h 30m

Miami

dom. 9/28

6:00 am-11:26 am

1 stop8h 26m

$173

San JoseMiami

SJC - MIA

SJCMIA

San Jose

jue. 9/25

2:14 pm-12:44 am

1 stop7h 30m

Miami

jue. 10/2

6:00 am-1:14 pm

1 stop10h 14m

$173

San JoseMiami

SJC - MIA

SJCMIA

San Jose

vie. 10/3

12:25 pm-12:44 am

1 stop9h 19m

Miami

lun. 10/6

6:00 am-11:30 am

1 stop8h 30m

$214

San JoseMiami

SJC - MIA

SJCMIA

San Jose

lun. 11/3

5:55 am-6:42 pm

1 stop9h 47m

Miami

vie. 11/7

6:00 am-11:32 am

1 stop8h 32m

$222

San JoseMiami

SJC - MIA

SJCMIA

San Jose

vie. 10/3

12:25 pm-12:44 am

1 stop9h 19m

Miami

lun. 10/6

9:30 pm-7:18 am

1 stop12h 48m

$224

San JoseMiami

SJC - MIA

SJCMIA

San Jose

vie. 10/24

12:27 pm-6:19 am

1 stop14h 52m

Miami

lun. 10/27

9:30 pm-7:18 am

1 stop12h 48m

$229

San JoseMiami

SJC - MIA

SJCMIA

San Jose

dom. 9/7

2:04 pm-12:44 am

1 stop7h 40m

Miami

vie. 9/12

6:00 am-11:30 am

1 stop8h 30m

$229

San JoseMiami

SJC - MIA

SJCMIA

San Jose

vie. 10/24

12:27 pm-6:19 am

1 stop14h 52m

Miami

lun. 10/27

6:00 am-11:32 am

1 stop8h 32m

$239

San JoseMiami

SJC - MIA

SJCMIA

San Jose

jue. 9/25

2:14 pm-12:44 am

1 stop7h 30m

$104

San JoseMiami

SJC - MIA

SJCMIA

San Jose

jue. 10/2

2:14 pm-12:44 am

1 stop7h 30m

$104

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/27

Showing 1-10 of 14 results
1
2

Best time to book a flight from San Jose to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from San Jose with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Jose to Key Largo

How far ahead should I book a flight from San Jose to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from San Jose to Key Largo. Price data was last updated on August 22, 2025.

Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Jose to Key Largo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Jose to Key Largo?

Currently, September is the cheapest month in which you can book a flight from San Jose to Key Largo (average of $232). Flying from San Jose to Key Largo in March is currently the most expensive (average of $289). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SJC to KE9?

Find hourly flight availability from San Jose to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Jose to Key Largo as you normally would.

What is the cheapest day to fly from San Jose to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from San Jose to Key Largo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Jose to Key Largo flight should consider departing on Monday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key Largo. Reviews last updated agosto 28, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from San Jose to Key Largo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,944 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Spirit Airlines
6.3
Okay
8,028 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from San Jose to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Jose to Key Largo?

    Located just 2.9 mi from the city center, San Jose is the airport most travelers will use when flying to Key Largo from San Jose. Booking flights from San Jose (SJC) to Key Largo should be relatively easy as there are 0 daily outbound flights to Key Largo from 8 different airlines.

  • How long is the flight from San Jose to Key Largo?

    A quick flight from San Jose to Key Largo can take about 7h 30m. Frontier provides one of the quickest options available for as low as $173. There are 2553 mi between San Jose and Key Largo.

  • Can I find deals for flights from San Jose to Key Largo that include hotel bookings?

    Yes. In addition to deals on San Jose to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Jose to Key Largo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Jose to Key Largo.

  • Can I find deals for business class flights from San Jose to Key Largo?

    Yes. Cheapflights offers flight deals from San Jose to Key Largo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Jose to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from San Jose to Key Largo (average of $232). Flying from San Jose to Key Largo in March is currently the most expensive (average of $289). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 8 airlines flying from San Jose to Key Largo

Discover the top 8 airlines that operate flights from San Jose to Key Largo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$144Average$481FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$156Average$325FlexibilityNo cancel feeOn-time65%
FrontierCheapest$168Average$198FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$171Average$495FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$179Average$315FlexibilityNo cancel feeOn-time62%
DeltaCheapest$256Average$406FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$351Average$552FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$440Average$691FlexibilityNo cancel feeOn-time75%

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